NO20064779L - ID-OD discrimination sensor concept for a magnetic flux leakage inspection tool - Google Patents

ID-OD discrimination sensor concept for a magnetic flux leakage inspection tool

Info

Publication number
NO20064779L
NO20064779L NO20064779A NO20064779A NO20064779L NO 20064779 L NO20064779 L NO 20064779L NO 20064779 A NO20064779 A NO 20064779A NO 20064779 A NO20064779 A NO 20064779A NO 20064779 L NO20064779 L NO 20064779L
Authority
NO
Norway
Prior art keywords
pipeline
magnets
probe body
flux leakage
instruments
Prior art date
Application number
NO20064779A
Other languages
English (en)
Inventor
William D Veach
Tyler S Lloyd
Jed C Ludlow
Original Assignee
Tdw Delaware Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tdw Delaware Inc filed Critical Tdw Delaware Inc
Publication of NO20064779L publication Critical patent/NO20064779L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/87—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9013—Arrangements for scanning
    • G01N27/902—Arrangements for scanning by moving the sensors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Volume Flow (AREA)

Abstract

En rørsonde og fremgangsmåte for drift av denne for bestemmelse av karakteristikaene til en ferromagnetisk rørledning hvorigjennom den passerer, omfattende en sondekropp, første og andre koaksialt periferiske magneter plassert med innbyrdes avstand med motsatt polaritet, som understøttes på sondekroppen og gir hovedsakelig fullstendig magnetisk metning av et område av rørledningen mellom magnetene, første instrumenter mellom magnetene som er anordnet for generering av signaler som er mottagelige for flukslekkasje og gir første informasjon om anomalier i rørledningens innvendige og/eller utvendige overflater, andre instrumenter understøttet av sondekroppen mellom magnetene og anordnet for generering av signaler som er mottagelige for virvelstrømmer indusert i rørledningens innvendige overflate og gir andre informasjon om anomalier i rørledningens innvendige overflate, signalprosesseringskrets-system som kombinerer de første og andre signaler og hvori de andre instrumenter bare aktiveres som gjensvar på signaler generert av signalprosesseringskretssystemet.
NO20064779A 2004-04-15 2006-10-18 ID-OD discrimination sensor concept for a magnetic flux leakage inspection tool NO20064779L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/825,873 US6847207B1 (en) 2004-04-15 2004-04-15 ID-OD discrimination sensor concept for a magnetic flux leakage inspection tool
PCT/US2005/010295 WO2005106451A1 (en) 2004-04-15 2005-03-28 Id-od discrimination sensor concept for a magnetic flux leakage inspection tool

Publications (1)

Publication Number Publication Date
NO20064779L true NO20064779L (no) 2006-12-27

Family

ID=34063653

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064779A NO20064779L (no) 2004-04-15 2006-10-18 ID-OD discrimination sensor concept for a magnetic flux leakage inspection tool

Country Status (10)

Country Link
US (1) US6847207B1 (no)
EP (1) EP1735612A4 (no)
CN (1) CN100523801C (no)
AU (1) AU2005238857B2 (no)
BR (1) BRPI0509943A (no)
CA (1) CA2560749A1 (no)
MX (1) MXPA06011921A (no)
NO (1) NO20064779L (no)
RU (1) RU2364860C2 (no)
WO (1) WO2005106451A1 (no)

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Also Published As

Publication number Publication date
EP1735612A1 (en) 2006-12-27
RU2364860C2 (ru) 2009-08-20
CN1942762A (zh) 2007-04-04
CA2560749A1 (en) 2005-11-10
AU2005238857B2 (en) 2010-02-18
EP1735612A4 (en) 2009-06-10
CN100523801C (zh) 2009-08-05
US6847207B1 (en) 2005-01-25
WO2005106451A1 (en) 2005-11-10
AU2005238857A1 (en) 2005-11-10
MXPA06011921A (es) 2007-01-25
RU2006140242A (ru) 2008-05-20
BRPI0509943A (pt) 2007-09-25

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